Machine for cutting bias strips



April 5 {1927.

" v. v. MESSER MACHINE FOR CUTTING BIAS STRIPS ts-Shee t 1 .1. v

Filed Feb.

All? supp; r Z8 WITNEbbES T, 1,623,354 v. v. MESSER f MACHINE FORCUTTING BIAS STRIPS April 5, 1927.

Filed Feb. 28, 1924 8 ShebS-Sheejb 2 INVENTOR WITNESSES WM v W 4 7 T 1%w v p g Aiaril 5, 1927.

1 v. v. MESSER MACHINE FOR CUTTING BIAS SITRIPS Filed Feb. 28. 1924IIIIIIIIIIIIIII/A vii/ In *1/14 '11 I II WITNESSES v April 5 1927.

' V. V. MESSER MACHINE FOR CUTTING BIAS STRIPS Filed Feb. 2 1924 8Sheets-Sheet 5 WITNESSES April 5,- 1927.

V. V. MESSER v MACHINE FOR CUTTING BIAS STRIPS Filed Feb. 28. 1924 aSheets-Sheet e INVENTOR 'TLM W why/w April 5 1927.

v. v. MESSER momma FOR cumme BIAS STRIPS Filed Feb. 28. 192 8 Sheets-Sheet '7 wnwsssss INVEN'i'ZiQR TM, 4!. v

April 5,1931

. v. V. MESSER MACHINE FOR CUTTING ans STRIPS Filed Feb. 28. 1924 J8Sheets-Sheeii s mvsu-roa wrmsssss Patented Apr. 5, 1927.

"VLADIMIR V. MESSER, F DOUGLASTON, NEW Y 'ORK.

MACHINE FOR CUTTING ras s a rs.

; Application filed February 38, 1924. Serial n 95,727.

This invention relates 1 to Vina-chines for cutting friction fabricsinto bias strips,

- such for example as are used inthe manu? facture of pneumatic tires.Machines used for this purpose may conveniently be divlded into twoclasses: those which feed the fabricintermittently and cut I only whenthe fabric is at rest and thosewhich feed and cut the fabriccontinuously. 'The pres- ,cnt invention belongs to the latter class. Inmachines using the continuous method, :it' has been customary tomakeuseof a' helical knife mounted on. a drum and rOtating iii-rolling contactwith another drum v-so that as the fabric: passes between the drum andthe helicalknife, it isc'ontinuously cut intoaseries of bias strips.,The pitch of [the helix and the diameter of the roll upon-Which ,itismounted determine the angle ofthe bias andthe width of. the bias--'strips.- Obviously, aseparate drum must be usedfor each separatewidth ,or for each separate angleof --S'CIlp. The consequentobjectionable accumulation of special" cutting drums is heightened bythe costly nature of the helical knives and the difficulty of keepingthem in condition.

In the improved machine described here in,'the fabric, while passingincontact with the main feeding roll, is cut into biasstrips by means ofdisk cutters-rotating in contact with the feeding roll ELIlClCflI'I'lQCl continuously-in one direction along. the length of the rollby ,suitable mechanism so,

ygeared-to theafeeding roll as to move synchronously therewith, thecutters being set at a proper angle and being also properly spaced apartas to cut-bias strips-of any idesired-width' or angler the variation inangle being accomplished by merely changing-the angle of the cutterswith respect to the axis of the drum and the'ratio between the speed ofthe drum and cutters and the variation in width ofithe stripsbeingaccomplished by simply changing the distance that the cuttersarefset apart on gthedriving mechanism.

- Other novel details of the invention will -:appear in the followingdescription, made with reference tothe accompanying draw ings, in-whichI Figure 1181a partial plan view of the 7 main part of the machine. 7

Figure, 21s a partial plan view of the ing disk; and its inking, disk,

compl ting the view Qf' ig- "drum l ftingmechan sm- Figure .9 is'acorresponding Lside tion of the opposite side otthe machine.

Figure 101 a fragmentary plan View of the cutter carriers and theleading-out rolls.

F gur 11- .is. a vicwifrom elow inking-disk; and its carrier.

Figurel2 is a View from belowiof a cut terand its carrier." V j Figure13 is a vpart-ia v rtical secti of the Figure 8 is a side elevationshowing theel v on line 1 +13- o Figure 0f the print;

Figure 13 shows] a fragment of the i-bias strip with the printed scalethereonpi,

Eig r lt i qa deta f the t rrie Q y- Figure 15 is a detail view of thesprocket Wheel in .sec v-a'nd t cutte car ie Figure 16 is asection-ofthegsprQCket wheel and cutter carrieronlinel616of Figure 15.,

Figure 17 is a detail ofthe leading-put rolls, shown inpartialvertical;sectionon hne 1717 ofiFigurelO; I

Figure 18 isa longitudinal section fonline.

18'18 of Figure 17.

Figure'19 is a. sect-ion through the pneu- 4 matic separating blade.

. Figure 20, lS-Q; section of thesame onjiline 202O of Figu1'el9. i I

Figuren21 isi a section illustrating, the

means whereby a the fabric is ie,d; .into i i the machine. 1

Figure 22 isa partial section.through-the,

feeding drum at, right angles ;to{that of vFigure 1,1011 the line EZQTQQ,ofFigure 2 3.

Figure 23 is a side elevationillustrating the-manner offeeding the,fabricn'onto the *drum; V g .v 1

Figure 24 s a perspective iewu of the clip nsed vtot-'gfasten the endof} fabric I to the drum for vfeeding V p R-eferringto the drawings,-an'iron' cylinlf der or roll 1, ha'vinga polished and hardened bearings.3,=whichare located at the upper extremities of bearing supports 4;,which are shdably mounted betweenfgindes 5 1n the a: driving sprocket 6.Twofauxiliary feed rolls 7' 'and 8(see-'Figure4) straddle the v flowerpart ofthe' roll and sprockets 9 and IP10respectivelyare'mounted ontheir shafts f n lland 12. Achain 13 passes over the sprocket I Wheels.9 andlO, under'the sprocketji vheel 6' lifand aroundidler'sprocket 1%(see Figure 9) 1 :and. driving sprocket 15. Sprocket 15 is I .niounted'on driving shaft 16, uponwhich [{al'so is 'a drive pulley 17 (se'e lliguree). A

- i 1 [feeding table'18 serves as a support for the Q fabric '19, whichfrointhe table' fis' led over roll 7, under rolll-{a'nd over roll (handonto, "*any suitable delivery means, which, *in thi.s

embodiment, is shown-as number of cables p 20. IThe cable suppOrt'sQOare made of one continuous cable. which is 3 wound over roll 8'alternately in suitable grooves cut inffits Ysurfac'efor fthis purpose.and thence over 7; roll when it passesjoveriidler pulleys 28, 7 2:4 and25 i to return to the je the otherend of, the rolls? connected by a.yoketo idlerpulley '23. 111 P3 "ftli e 'space immediatelyunder thefrcll"and between the rolls 7' and 8 are'guides '26 (see are - fendzfof{theroll to the other and 'pi'intingroll carriers 28. The said carriers Ichain links 30'fintoa continuous chain eleent. The chain. and itscarriers arefcarr iedfby" sprocketifwheels and 32 (see Figure f7 and oneof ense;- has a. gear j33meshing with gears 34 and the latterspir@lgea1"-s 37 from the shaftlof'drum 7. thesef lneansf the chain" andits] carriers "have a longitudinal motion 'alcngthecylinder impartedtoit.wvl1icl1 is synchronous rings43;similanjto the V spring's 40 for the4 surface, hasitsshaft 2 mouiited in journal 'two side frames of themachine; The shaft 7 fat-one end of the roll has mounted upon 15' anend'ro1l21 until it coines'to the end of the" rtingpoint at V pThef-tensionfis Vmaintained by'rneans .of weight: 22f with cablepassingover an idler pulleyQZ and jFiguresT-and 21)-?which extend from one" p vV adapted I {toformZ'gurdes for-cutter carri'ers 2'2" and T1 31 6. Sidelugs '29., which "slide in gooves in fthe guides. "These carriers areconnected by" bein rymounted i on a shaft 3 driven by:

" V wit-h the rotation of the mill 1. The cutter;

arrier has mounted within it a disk cutter.

: lllll' which iscapable of. free play vertically'in b spiral'springs' Oso as to'cause the cutter,

1novableblock42 which is forcedoutward by" a -1 cutters butlmuch lighterin tension; whereby thelprintingfdisk has held ncontact with the undersurface of the fabric. The "block 12 has depending rods 4 2 whichsupport a;

lower block. 45, in which is journalled an inkingdisk h") so that thedisk {t6 remains in continuous rolling contact with the print- 7 ingdisk4:1, Cover platesi- (see Figure 13) imit the outward motionof'the'cutter' car rier blocks and the inking disk carrier blocksavhenthey pass'beyond the end of the roll 1. As shown in Figure 15, thesprocket i the chain '30 and its conwheels carryin nected carriers havepockets 4C8 for receiving the carriers and the sprockets are also pmivi'ded with properly shaped teeth tQada pt- 1 ed to engage between thelugs 29 of the car riers. Take-i1p screws (see Figures 1 and 7) furnisha means offtaking up slack of the chain, said screws being mounted insupports 51'and screwing into slidablebearing blocks 52 that carry theshaft of thew sprocket wheel 31 on guides- 53 suitably mountedon theframe of the machine.

' It will be apparent from the above de-b scription that, as the roll 1and the two auxiliary rolls 7 vand 8 are geared together by the chain 13and through intermediate mechanism with the sprockets 31' and 32 theydrive the chain and 'its'connected "cutter and inking carriers 2'? and28 so that the fabric it passes under the roll will be cut diagonallyinto bias 1 strips, the width of which strips will be determined by thespacing apart of the cutter carriers and their cutters and'the'angle ofthe bias'by the relathis motion of the roll and the cutters. The

disk cutters will; therefore, be set at this angle in their carriers andthe printing disk Th e will also be set at the same angle.

printing disk being midway between the I i V cuttingdisks will print acentral line'in the middle of each bias strip. 7 The inking disks areprovided also, with transverse printing lugs L1 which will printalongthe central line a scale of marksas shown in Figure 13% The objectofthe printingof the central line; and of', the scale of marks is toI Qenable the operator that is building the tire to place the stripcentrally on the tire mold or the tire "carcass and the objectof'thc"printed scale is to enable him to see that the stretching'which'occursmostly at the nic diu n line is uniform around the periphery of thetire. lhe disk cutters as shown in Figure 3, have one straight edgenormal to axis and one beveled edge. The'object of making: the cuttersin this form is twofold. "it cutter beveled on one side-will always cuttrue to a certain line no matter how it is ground in sharpening whereasa cutter having a bevel on both sides, if ground. more on one sidethanthe other, will no longer cut true to the medium line. Such beveledcutter in cutting throughan elastic "fabric neXtto 2 the beveled surfaceof :the -cutter as 'shown'in' iFigure 3,1Et 11Cl'1t is desirable thatany such ruinpl-ing ofitliefabric:

be confined tocneside of the cut strip namelyto thatfside whichistrailing. The

leading edge of the cut strip will, therefore, be more easilyyfed inbetween the rolls or "thefeeding mechanism and will not tend to fold upor otlierwise cause distortion. 1T0

,1110'18 surely guide the cut stripsponto the delivery supports,Ieinayprovide anecha- .nism as follows: lnterpolated between theygrooves carrying the cableson the roll 8 are intermediate: groovesasshown in Figure 1, around i which is wound; a: cord which valternately' passes over; the-roll 8 and over a smaller roll 8 ,close-totlie cutterwguides. mTheiroll 8 -is also grooved corresponding with theroll 8, and is pressed up againstthe :vfabric-bymeans of springsfit (seeFigures. 17 and 18) acting againstthe vertically slidingjournal supportswhiclnthrough 3 ball bearings 56, 'carry the rolls "8 The leading edgesof th'e'stripsas they leave the cutters are gripped betweenthe rolls 8and the roll 1 and are led therefrom onto the roll 8 and from :rthenceonto the supporting cables 20,-restinguin .theposition shown byfidotiand dash lines ii Figure 2.

' In order to insure the sticky fabricwleaving the roll: as it' passesbetween the sameand -roll-8, I provide a supporting blade '57..

:This'blade has a sharpened edge Whiclrcuts along the surface of theroll to insure the separation ofthe fabric from the roll. The blade,however, is inade hollow by having a seriesof holes 58 drilled in .itwhich, through 1 :a longitudinal slot 59,-leads compressed air 'fI'OID-the supporting pipe '60 toaseries of jet holes 61. Compressed airis-supplied to "pipe-60 andiissuing'froin jets 61 impinges on the uppersurface-ofthe fabric and causes a before it reaches the knife blade.

-sent-ially insures that the upper surface'of fithestickyifabric will beentirely freed: from I the same to leave the roll as a rule, evenTlHSQS- contact with any solid substance. Y

To :feedtheafaibric into the machine, the

roll is mounted in vertically moving supnports 4:,Wl11Ch also carrybracketiarins 162 that support the air pipe 60. .A-sh-aft'63 at A crank'68 on the end .of-the short distance suflicient to. allow the passage:'-between-tlie roll and the cutters of the beginning of the strip. Whenit is desired to feed the end of the fabric into the machine,

cuse'isinade of: a bar of inet-al'69 (seeFigure 124) which has-upturnedperforated ends70.

' :5 The endof the fabric is folded around this v the fabric.

printing disks all. I 'Vmeans of a sprocket T l on one endof-its bar (asshownvin' Figures. 21-and 23): and

the. endsofthe bar 69 are securedby pins 71 to the endsof .tlie-druiii.The drum isithen rotated a short distance-until the. end of the stripcomes to a point beyond'the contacting point of therolls L and 8 whenthe bar 69 .--is removed and the calendar 'L'Oll 'lOWQYGCl into positionby operating crank--68, thus bringingthe cutters into -posi'tionl to cutthrough: the fabric and impinge: against the 'roll and the printingdisks to contact-with Immediately iiider the 1 guides 26 an ordi naryinkingroller 72 is-iotatably supported in the frame of themachine and.1.1nderneatlr it, an ironinking roll 78is. similarly :pivoted.

The soft roll 72 comes inicontact withthe inking r011 73 and alsoiii-contact-with the inking disks lfi, which transfer the ink to the Theroll. 73 is rotated by shaft, which is driven by surocket chain 7 fromSPIOCliOLWliGQl 76 mounted :on the calender roll. An idler sprocket 77,through the ii'iediuiii ofspring 78 (see Figure 9) and connecting rods79, maintain a yieldiiigteir sionon-the sprocket chain and allow'OlfSlll strain will be involved by the lift-ing-ofthc calender roll.The inking r011 73 1's supplied intermittently with ink from a soft:inking lit) I ficieiit freedom of play-so tliatpnouiidue,

roll-80 rolling in contactwitli an. inking roll '81and moved from saidroll 81 to r'oll T3 intermittently by means of rocking arm 82,connecting rod .83, bell crank Stand-shaft 85, which is operated throughbell crank-86.

and connecting rod 8? fron'r-bell *cirankyt8 An ink mounted on. theshaft of roll- 7. trough 89 of the usual construction, sup'phes ink toroll 81, which is rotated bya ratchet wheel 90 from an eccentric 91in-thedusual' .manner of printing.presses;

Inorder to prevent any side shift O'fwtllO fabric, I provide the deviceshown in-Fig- :ure .5, whichconsistsof a roller 92 carried by angle '93in a slot :in the guide '26 on the :incoming side. This roller v92 ispress'edupward against the fabric by means-of springs Slwunder the angle(-see Figure 6) and is :held from endinotion by blocks 95. The

fabric is thus gripped so firmly between this .1

roller 92 and the calender roll 1 asto :be insured against slippingsidewise.

lVhile I liavedesci'ibed herein apparatus for printingupon fabric, I donot make claims upon the devices herennas such de vices willfornithe-subject'of a separateapplication.

I cla1m: V V -1. In a machine of the class d-escribeihin combination arotatable roll, having an minter "upted. surface, a cutten adapted, toim pinge on the surface ofthe roll, astationary guide for tliecutterparallel tothe axis 10f IE2. In a machine of the class describecL-incombination, a rotatable roll having an un- J fjof the'roll, astationary guide for the cutters carrier on'wliich said cutters areattached at i the roll foranoving'the" carrier-and cutterslongitudinally along' the gu de synchronous- "Withthe rotation of therOll';wherebyl 1 fabrics fedcontinuously over the roll'may a a V ofspaced cutter carriers articulatedtogether, V r

: {jib e continuously cutin diagonal lines.

.combina tiom'a rotatable roll having an uninterrupted surface," a}plurality 0t spaced 1 edges ride'on the. surface'of the roll, a staaxisof-gthe -roll,iaiid i neans exterior to-th .7 1 {roll for moving thecutterslongitudinally V; along 'thje guide synchronously with the roltationof the roll whereby vfabrics ted] co n L tinuously over the rollmaybeicontinuously c'ut indiagonal lines.

combinatioma rotatable roll. having'an un- I interruptedsurface, aplurality of spaced endless chain; each carrier having a rotatablei-theroll, a jstationary guide for-the cutter jljilitlleltO the axis o-fthe roll, and means terior to the-rollfor inovlnn the cutter cari C9-cl'ii onouslyj with the, rotation. of the roll whereb'y fabric'si edvcontinuously over the l es coi'nbinatiomi a; rotatableroll having an unnterrupted surfacafa plural ty of spaced carrier having a; rotatablecutter adapted to v mpingeon the surface ofitheroll, station- 7 =1 aryguides for "tlie lcarriers parallel to the interrupted surface, 'a'-plurality of spaced Qcuttersadapted to impinge on the surface parallelto the axis of the roll,- an endless fixed distances'apart, and-meansexterior to 3.Injafmach-inefof the class described, int

rOtatable dislrcutters adapted to have their:

tionary guidefor thecutters'parallel to the.

. 'In' a machineof the class described, in; combination, a a rotatableroll having", an un finterruped '7 surface, plurallty of spaced 5..In amachine ofthe classdescribed, in

c utterparriers articulated together .in'an:

' cutteriadaptedto impinge'on the surface of s' longitudinally along theguide syn- ;.r oll-may' be continuously: cutin diagonal 6,;In a machineof thefclass described, in l utter --'-ca'rri'ers* articulated together,each v the guides synchronously Witli the rotation of the rollWherebyfabrics fed continuously over the roll may be continuouslycutindiagonal lines 7'. In a machine ofthexclass described, in

coinbinatiomn rota-table roll, a plurality of spaced cutter carriersarticulated together,

eachcarrier having a rotatablecutter and resilient'nieans adapted topress the cutter to the roll, guides for the-carriers parallel to 'theroll, "andlmeans for. moving the cutter' carriers longitudinally alongthe guides syn Q chronouslywith the rotation of-lthe'roll.

8; In "am'achine of thee-lass described,

in combination, a rotatable roll, a plurality :j

can,

t'abric'carrying roll, a rotatable cutter with its axisinclined to theaxis of the roll having a flatface normal to itsaxis and a bevelled facemeeting'the flat face'at the cutting edge, the said edge being adaptedto impinge on the surface ()1 the roll witlrthe' fiat 'side of thecutter normal to the surface of the roll andopposed to the direction.

of feed whereby ruin'pling oi the fabric is avoided. J 1 i 10, In amachine of, the class 3 described, in combination, a rotatable roll,adapted to feed a friction fabric over a part of its periphery, cuttersadapted to impinge onithe roll andcut the fabric into bias strips, meansfor moving the-cutterslongitudinally along the rollsynchronously withtherotation of I we r n the roll, and a blade impinging on the roll,"

saidv blade having air passages for delivering jets of air between therolland fabric to separation of the fabric fronrthe insure the roll.

to feed a friction fabric. over a part of its 11.'In a machine of theclass described, ln'combination, a rotatable cylinder, adapted 5periphery, cutters adapted to impinge on the cylinder and cut the fabricll1t0-bl2l$ I strips, means for i'noving the cutters longi tudinallyalong the cylinder synchronously wvith'the rotation of the cylinder, areceiv ting rollbetWe-en which and the cylinder the iriction fabric isfed after beingrcut and means for holding thei'abrlc 111 contact withthe cylinder until it reaches the point Where it is' pinched roll. I

between the cylinder and the In a inachineof the class described, Tinc0mbination,-ia rotatable cylinder adapted to feeda trictio'nf fabricover a part of its periphery, cutters adapted to iinpinge .onit

the cylinder and cut the fabric into bias strips, means for moving thecutters longitudinally along the cylindersynchronously with the rotationof the cylinder, a receiving roll between which and the cylinder thefriction fabric is fed after being cut, and

means for holding the fabric in contact With the cylinder until itreaches the point Where over said roll of small diameter and thereceiving roll.

13. In a machine of the class described, I

in combination, a. rotatable cylinder having an uninterrupted surfaceover Which a fabric may be fed, a device adapted to 'act on the fabricand means exterior to the cylinder for moving said device longitudinallyalong the cylinder synchronously with the rotation 20 of the cylinder.

, VLADIMIR MESSER.

